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A254988 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically 1
2462249, 28125597, 562741035, 11760002405, 238370434022, 5043778832638, 107757967581726, 2265895906065136, 47852157043609832, 1013669361676786896, 21439426659622350165, 453176087871840448014, 9586472302967108317159 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A254989

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..53

EXAMPLE

Some solutions for n=1

..0..0..0..0..1..1..1..0..0....0..0..0..0..1..1..1..1..1

..0..0..0..1..1..1..0..0..0....0..0..0..0..0..1..0..1..0

..0..0..0..0..0..1..1..1..1....0..0..0..0..0..1..1..0..1

CROSSREFS

Cf. A254989

Sequence in context: A022216 A257195 A257188 * A097968 A205025 A254774

Adjacent sequences:  A254985 A254986 A254987 * A254989 A254990 A254991

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2015

STATUS

approved

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)